I think it is great... that is how we get baby deer to replentish the herd.

Depends on where you live. In the south, it's not uncommon.

The reason the rut is so intense for deer is that the does go into estrous in a short time period so that the gestational period is similar, and the does drop fawns around the same time in the spring. This allows for higher survival of the most fawns, as predators key into the small more helpless fawns at this time and essentially cannot kill as many because they're "full". The deer can spread out to make the distance a factor for predators along with the fact that a deer's normal brood is two fawns the more dominant or healthier one (basically the one that learns to run faster) lives where the weaker die.. Providing food during these pivotal times (along with many other) to promote a high fawn survival and health can be very effective. Also on a note of a more personal vendetta, a spike weather it be 2 or one will not stay spike forever this is a myth it has to do with food! so for all you gene junkies out there spend you time on more proactive food sources and less time pretending to have effect on your herds gene's.
I think deer breeding right now have a lower chance of successfully keeping fawns through there first year but other factors can exist (such as heat,and available food for predators) that can help fawn survival, once again like good food sources for the mother and fawns at pivotal growth periods